During his Brood War career, hyvaa achieved moderate success in individual and team leagues and reached his peak during 2008 Shinhan Winners League, recording the best performance on his team, eSTRO, and statistically being one of the best players that round. hyvaa was known for his strategic and smart play, especially against Terran opponents. His individual best performances include an Ro36 in 2009 Bacchus OSL and an Ro32 in 2009 Nate MSL.

Hyvaa was seeded into Group F in the Round of 32 along with First, Leenock, and RorO. Although he suffered an initial loss against Leenock, he was able to beat him the second time to get out of the group, after beating RorO in the losers match. Moving on the Round of 16, he was placed in Group C along with First, Rain, and FanTaSy. Beating FanTaSy and First but losing to Rain, he finished with a 2-1 record, just like First and Rain, and a tiebreaker was required. After a first tiebreaker ending in a stalemate, hyvaa lost both his matches against Rain and First and dropped down to Challenger League Round of 24. In Challenger League his opponent was Life whom he defeated 2-1 earning his spot back in Premier League for 2013 WCS Season 3 Korea GSL

His first official SC2 match was an ace match, in which he defeated JangBi.

Famously used a six pool against fan-favorite FanTaSy on the map Newkirk Precinct in Round of 16 of the second season of WCS Korea, and pulled three drones ahead of time in order to prevent his opponent from sealing off his wall. However, having opened barracks first, FanTaSy was able to easily defend the rush by pulling some SCVs and blocking the ramp to his main base. Artosis and Tasteless jokingly commented that it was one of the worst performances that they had ever casted, but Hyvaa still managed to defeat FanTaSy in the Best of 3 using better executed cheeses.